FINCHforum

I have some chicks from a first time pairing of two RH/WC/GB gouldians.

Looks like the one at the lower left has a different head/beak color than the one at the lower right.. I just learned that RH cocks can be SF or DF, the SF can produce a BH.

I'm thinking I've got one BH chick from 2 RH parents. Do you agree??

SF means single factor yellow being dilute and DF is double factor being yellow, so it can't be that, you will have to wait until they fledge to be sure.

Thanks Finchman.

I was using this intel from www.gouldianfinch.info

"Red head (RH) is a sex-linked dominant trait, so cocks can be double factor (DF) or single factor (SF) red heads and express it while hens can only ever be single factor (SF) and express it. No cock or hen can ever be split for red head."

SFRH cock × RH hen
"Theoretically, half of the cocks produced will be DFRH and the other half will be SFRH (/BH); half of the hens will be RH and half will be BH."

Cheers,
Steve

My DFY RH male and SFY RH hen produced a black head baby And the chances of that if they were split orange head as well was 25% I think??

I have no idea, I know nothing aout gould genetics but congrats on te beautiful babies!

Nice looking chicks, and well fed too.

male gouldians can be single or double factor red headed. the bird will appear red headed either way, but if he's single factor, that's pretty much a fancy way of saying he's split to black headed. with the exception of the yellow headed gene, females are pretty much what you see is what you get. they can only be single factor for head and body color. so it's possible that your male is single factor red headed which would give you the possibility of producing black headed females. i'm not sure, however, if you'd be able to tell now what color your babies heads will turn out to be. i think for that you're just gonna have to be patient
i hope i answered your question? gouldian genetics can be pretty confusing, even when you're trying to explain them in a simple manner

Are you colony breeding? Or is there a chance the female had mated with a different male before you chose her for this male (if she was in a colony setting before you set her up and they went straight to nest it's possible she had retained sperm from a previous mating - it's viable for 14+ days after insemination)?

Looks to me that the baby is yellow - but you cannot get a yellow baby from two normal green parents.
The baby/juvenile beak color doesn't relate to head color, unfortunately.. that would be nice